IS 10124-5: Fabricated PVC-U Fittings for Potable Water Supplies - Specification, Part 5: Specific Requirements for Equal Tees

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IS 10124-5 (2009) : Fabricated PVC-U Fittings for Potable
Water Supplies - Specification, Part 5: Specific
Requirements for Equal Tees [CED 50: Plastic Piping System]

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PROTECTED BY COPYRIGHT

IS 10124 (Part 5): 2009

Indian Standard

FABRICATED PVC-U FITTINGS FOR POTABLE WATER
SUPPLIES — SPECIFICATION

PART 5 SPECIFIC REQUIREMENTS FOR EQUAL TEES

( Second Revision )

ICS 23.040.45; 91. 140.60

© BIS 2009

BUREAU OF INDIAN STANDARDS

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

May 2011 Price Group 2

Plastics Piping Systems Sectional Committee, CED 50

FOREWORD

This Indian Standard (Part 5) (Second Revision) was adopted by the Bureau of Indian Standards, after the
draft finalized by the Plastics Piping Systems Sectional Committee had been approved by the Civil Engineering
Division Council.

This standard was first published in 1982 and revised in 1988. In this revision, sizes and classes of fittings
have been aligned with IS 4985 : 2000 'Unplasticized PVC pipes for potable water supplies — Specification'.

The requirements of fabricated PVC-U fittings are covered in thirteen parts. The other parts in the series are:

Part 1 General requirements

Part 2 Specific requirements for sockets

Part 3 Specific requirements for straight reducers

Part 4 Specific requirements for caps

Part 6 Specific requirements for flanged tail pieces with metallic flanges

Part 7 Specific requirements for threaded adaptors

Part 8 Specific requirements for 90 bends

Part 9 Specific requirements for 60 bends

Part 10 Specific requirements for 45 bends

Part 1 1 Specific requirements for 30 bends

Part 12 Specific requirements for 22 Vi bends

Part 13 Specific requirements for 1 1 % bends

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,
observed or calculated, expressing the results of a test or analysis, shall be rounded off in accordance with
IS 2 : 1960 'Rules for rounding off numerical values (revisedy . The number of significant places retained in
the rounded off value should be the same as that of the specified value in this standard.

IS 10124 (Part 5) : 2009

Indian Standard

FABRICATED PVC-U FITTINGS FOR POTABLE WATER
SUPPLIES — SPECIFICATION

PART 5 SPECIFIC REQUIREMENTS FOR EQUAL TEES

( Second Revision )

1 SCOPE

This standard (Part 5) lays down the requirements of
manufacture, dimensions and marking for fabricated
PVC-U equal tees for potable water supplies.

2 REFERENCES

The standards listed below contain provisions, which
through reference in this text, constitute provisions of
this standard. At the time of publication, the editions
indicated were valid. All standards are subject to revision
and parties to agreement based on this standard are
encouraged to investigate the possibility of applying
the most recent editions of the standards indicated
below:

IS No.
4985:2000

10124 (Parti):
2009

Title

Unplasticized P VC pipes for potable
water supplies — Specification {third
revision)

Specification for fabricated PVC-U
fittings for potable water supplies —
Specification: Part 1 General
requirements

3 REQUIREMENTS

3.1 General

The general requirements for material, sizes, tests,
sampling and criteria for conformity shall conform to
IS 10124 (Parti).

3.2 Manufacture

3.2.1 A typical illustration of equal tee is shown in
Fig.l.

3.2.2 Dimensions

The dimensions of equal tees shall comply with those
given in Table 1 read with Fig. 1 .

4 MARKING

4.1 Each equal tee shall be clearly and indelibly marked
with the following information:

a)
b)

c)

Manufacturer's name or identification mark.

Size of the equal tee and the appropriate class
(working pressure) of IS 4985 to which the
pressure rating of the fitting corresponds, and

The equal tee shall be marked in colour as
indicated below for different classes of fittings:

Class of the Fittings

Colour

Class 2 (0.4 MPa)

Blue

Class 3 (0.6 MPa)

Green

Class 4 (0.8 MPa)

Brown

Class 5 (1.0 MPa)

Yellow

Class 6 (1.25 MPa)

Black

4.2 BIS Certification Marking

Each equal tee may also be marked with the Standard
Mark.

4.2.1 The use of the Standard Mark is governed by the
provisions of thQ Bureau of Indian Standards Act, 1986
and the Rules and Regulations made thereunder. The
details of conditions under which a licence for the use
of the Standard Mark may be granted to the manufacturer
or producer may be obtained from the Bureau of Indian
Standards.

IS 10124 (Part 5) : 2009

fzzzzz

/^^^yyy^yy^[^^^^^ y^r-rv-rrrZZ.

D = mean socket internal diameter at mid-point of socket length as specified in IS 10124 (Part 1).
L = minimum socket length in according with IS 10124 (Part 1).
B = 1 .45 X nominal outside diameter of the pipes +6 mm.

t = minimum wall thickness of equal tees calculated on the basis of 90 percent of the minimum wall thickness of the
corresponding size and pressure class of pipe rounded of to the next higher 0:1 mm.
NOTES

1 Manufacturer can make reducing tee as per customer requirement of any combination. For dimensions use Table 1 for
relevant main size and reducing size.

2 The drawing is only intended to define the terms used in Table 1 and is not intended to illustrate specific design features.

*PVC welded by solvent or welding rod and with fibre glass reinforcement of 40 mm width and 3 mm minimum thickness
as per different size.

Fig. 1 Equal Tees

Table 1 Dimensions of Equal Tees

(Clause 3.2.2, mid Fig. 1)

All dimensions in millimetres.

SI

Nominal Size

B

Minimum Wall Thickness {t)

for Working

Pressure

No.

Min

MPa

^A (Class

2)

0.6 (Class

3)

0.8 (Class

4)

1.0 (Class

5)

1.25 (Clas76>

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

i)

63

98

1.4

2.0

2.5

3.2

3.8

ii)

75

115

1.7

2.4

3.1

3.8

4.6

iii)

90

137

1.9

2.8

3.6

4.5

5.5

iv)

110

166

2.3

3.4

4.4

5.5

6.7

V)

125

188

2.7

3.9

5.1

6.3

7.6

vi)

140

209

2.9

4.4

5.7

7.0

8.6

vii)

160

238

3.4

4.9

6.5

8.0

9.8

viii)

180

267

3.8

5.5

7.2

9.0

10.9

ix)

200

296

4.2.

6.2

8.0

10.0

12.3

X)

225

333

4.7

6.9

9.0

11.2

13.8

xi)

250

369

5.2

1.1

10.0

12.5

15.3

xii)

280

412

5.8

8.6

11.3

13.9

17.1

IS 10124 (Part 5) : 2009

Table 1 {Concluded)

SI
No.

Nominal Size

B

Min

Minimum Wall Thickness {t)

MPa

for Working

Presi

sure

^a4(Class

2)

0.6 (Class

3)

0.8 (Class

4)

1.0 (Class

5)

1.25 (Class^

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

xiii)

315

463

6.5

9.7

12.6

15.6

19.3

xiv)

355

521

7.3

10.8

14.3

17.7

21.7

xv)

400

586

8.2

12.2

16.1

19.8

24.5

xvi)

450

659

9.3

13.7

18.0

22.4

27.5

xvii)

500

731

10.9

15.3

20.1

24.8

30.5

xviii)

550

816

12.6

17.2

22.4

27.8

34.2

xix)

630

920

13.0

19.2

25.2

31.3

38.4

NOTE — For 0.25 MPa pressure class, equal tees should not be made from 0.25 MPa pressure
made from 0.4 MPa pressure class should be used.

class pipes.

For this

equal tees

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote harmonious
development of the activities of standardization, marking and quality certification of goods and attending to
connected matters in the country.

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of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be
addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
'BIS Catalogue' and 'Standards: Monthly Additions'.

This Indian Standard has been developed from Doc No. : CED 50 (7435).

Amendments Issued Since Publication

Amendment No. Date of Issue Text Affected

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